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Re: TR4 valve guides

To: dorpaul@negia.net, triumphs@autox.team.net
Subject: Re: TR4 valve guides
From: ZinkZ10C@aol.com
Date: Thu, 2 Sep 2004 20:08:58 EDT
In a message dated 9/2/04 2:41:19 PM Eastern Daylight Time, dorpaul@negia.net 
writes:

<< On my '66 TR4 engine are both intake and exhaust valve stems the same
 diameter? >>


You would need to look in a engine book for TR specific measurements.  For 
engines in general, there is a nominal valve guide/stem size of say 5/16" for 
example.  The exact size is listed at .3125" for the stem and say, .3145 for 
the 
exhaust guide and .3135 for the intake guide.

In general, the intake stem/guide clearance is smaller to control oil, the 
exhaust is larger due to the extra heat generated by the exhaust gasses.

Harold

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